Home / 83,432.52-125,148.24-21,103.20

Finding the Fourth Proportional to 83,432.52, 125,148.24 and 21,103.20

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Solution

The fourth proportional to 83,432.52, 125,148.24 and 21,103.20 is: 31,654.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,432.52 : 125,148.24 = 21,103.20 : x
  2. Step 2: Convert to fraction form
    83,432.52/125,148.24 = 21,103.20/x
  3. Step 3: Cross multiply
    83,432.52x = 125,148.24 × 21,103.20
  4. Step 4: Simplify right side
    83,432.52x = 2,641,028,338.37
  5. Step 5: Solve for x
    x = 2,641,028,338.37/83,432.52
  6. Step 6: Final answer
    x = 31,654.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.